Simon Brooke
b0a49fb71d
Restandardised formatting.
2021-08-17 16:37:04 +01:00
Simon Brooke
93d4bd14a0
Generally, changed working with tags as strings to as values.
...
This seems both cheaper and safer; what's not to like?
2021-08-17 16:09:00 +01:00
Simon Brooke
bfd7304da1
Bother. It looks like I'd already fully implemented hashmaps...
...
May need to back out a whole hill of work.
2021-08-16 15:12:05 +01:00
Simon Brooke
492460f37e
Compiles and tests, but there are still major problems.
2021-08-04 11:16:00 +01:00
Simon Brooke
70d176982b
Work on exception handling, especially around ratio arithmetic
...
Much simplified but will break things!
2021-07-25 17:02:28 +01:00
Simon Brooke
baf8d6669d
OK, it is BETTER, but not FIXED.
...
(expt 2 63) goes weirdly wrong - returns T.
Internal representation is correct, so fault is in print.
2019-02-15 18:49:52 +00:00
Simon Brooke
71354d0f86
Woohoo! Actual goddamned progress! Multiply might be working!
...
Print definitely isn't!
2019-02-15 14:19:41 +00:00
Simon Brooke
23e4f0befa
A bit of work on time, but it doesn't actually work yet.
2019-02-05 09:59:05 +00:00
Simon Brooke
b15c0e8f89
Tactical commit
2019-01-28 15:02:46 +00:00
Simon Brooke
0e11adea1c
Compiles, most tests break
2019-01-27 17:22:13 +00:00
Simon Brooke
a355a28ffa
Tactical commit whilst converting to URL_FILE
2019-01-24 19:36:00 +00:00
Simon Brooke
f8c20ab3b1
Still broken, but I believe we're moving in the right direction.
2019-01-24 10:12:08 +00:00
Simon Brooke
bf72ae379d
Getting closer. WARNING: GC disabled in this commit.
2019-01-22 09:48:26 +00:00
Simon Brooke
3fd322af6f
Major progress, multiply now almost works
...
There's a premature free() somewhere, and I'm not sure why.
Print depends on divide, which is easy, but also on mod and floor (of rationals) which isn't.
2019-01-21 16:14:25 +00:00
Simon Brooke
64fc43e9fc
OK, my idea that long multiplication is like long addition is wrong.
...
It's still broken, but it's broken because of fundamental misunderstanding which tinkering won't solve.
2019-01-20 23:34:46 +00:00
Simon Brooke
22fa7314d6
Mostly fixing and standardising documentation.
2019-01-20 20:37:44 +00:00
Simon Brooke
0f8bc990f2
Much investigation of bignum problems
...
bignum multiply is still not working, but as bignum read and bignum divide depend on it, it's the problem to hit first.
2019-01-19 16:28:15 +00:00
Simon Brooke
46a4132823
Made it easier to run individual unit tests
2019-01-18 20:55:03 +00:00
Simon Brooke
7f93b04b72
Various refactorings around bignum arithmetic
2019-01-17 17:04:14 +00:00
Simon Brooke
d624c671cd
Major refactoring, all tests still pass
...
Bignum issues not yet folly resolved.
2019-01-05 11:42:17 +00:00
Simon Brooke
67443e1d46
OK, adding bignums works; multiplying bignums does not work.
...
There's no evidence of a bug in reading/printing, because the only way I can currently get a number big enough to trigger the supposed bug is by multiplying, which doesn't work.
2019-01-04 11:04:55 +00:00
Simon Brooke
67802a07b8
Now successfully reading/printing 2 cell bignums
...
Something is wrong with n-cell bignums, but let's make haste slowly.
2019-01-04 10:40:15 +00:00
Simon Brooke
d9d789fdd0
Now creating the correct internal bignum representation
...
add_integers returns an integer which by inspection of the internal representation is correct, but the print representation is not correct.
2019-01-03 11:21:08 +00:00
Simon Brooke
4295b6e57f
This isn't working, but it's VERY promising.
2019-01-01 15:04:44 +00:00
Simon Brooke
6d2cf313cb
Very small fix to formatting integers.
2018-12-31 16:24:38 +00:00
Simon Brooke
e5f40032e9
Now safely detecting (but not dealing with) integer overflow.
...
Also printing and reading integers with comma separators.
2018-12-31 16:15:14 +00:00
Simon Brooke
02fe5669d8
Complete reworking of the REPL
...
which is good in itself, but not what I was meant to be working on.
2018-12-30 17:56:15 +00:00
Simon Brooke
47f4b4c7f7
Bug was in integer_to_string; all tests now pass.
2018-12-30 12:07:38 +00:00
Simon Brooke
61573d85d9
/all-integers-are-bignums: broken, but I don't know why.
2018-12-30 11:10:14 +00:00
Simon Brooke
489f008044
Printing of bignums basically done, not tested.
2018-12-29 23:44:28 +00:00
Simon Brooke
342f0308d3
The beginning of bignums is in place, tests still pass.
2018-12-29 22:30:07 +00:00
Simon Brooke
c21a762413
Much better GC, still a few things being missed.
2018-12-29 20:34:31 +00:00
Simon Brooke
40e1f3ca64
Whitespace only changes
2018-12-29 07:40:01 +00:00
Simon Brooke
e52ccce0eb
Much progress! Half the unit tests pass.
2018-12-28 15:50:37 +00:00
Simon Brooke
75abfb4050
Much better debugging, but it still doesn't work
2018-12-27 21:37:38 +00:00
Simon Brooke
3d5c27cb10
Horribly broken, may have to rethink.
2018-12-26 21:10:24 +00:00
Simon Brooke
9937f344dc
Major refactoring. Major problems!
...
On the right path but it doesn't work yet.
2018-12-26 20:30:14 +00:00
Simon Brooke
ae8ba67ed7
Better exceptions, investigation on failure to read/print wide chars.
2018-12-25 15:32:53 +00:00
Simon Brooke
6ee9f9b59a
Begun work on bignums; changed integer size to 64 bits
...
I'm fairly sure the size of a long int on my machines is 64 bit anyway, but for portability it needs to be explicit.
2018-12-25 13:18:37 +00:00
Simon Brooke
ad9b1cd7f8
Ratio arithmetic separated out into its own files.
2018-12-24 21:06:58 +00:00
Simon Brooke
a5e1d3ccd8
Reorganised source files to make navigation easier
...
All tests still pass (slightly to my surprise)
2018-12-24 19:27:04 +00:00
Simon Brooke